Features and Benefits ï® Standard wheel seals feature a nitrile compound rubber (NBR) for the sealing lip ï® Premium wheel seals feature a hydrogenated nitrile butadiene rubber (HNBR), offering additional advantages of higher temperature capability, greater wear resistance and compatibility with all known synthetic lubricants ï® The multi-zone labyrinth design and low-friction barrier deliver unmatched durability and protection against dirt, grime, water and other contaminants ï® The bumper transmits the fitting force from the front of the seal to the outer diameter, and acts as the first defence against contaminants ï® The seals provide outstanding lubricant retention and protection against contaminants, but they are also easier to install, which significantly decreases the potential for damage during installation
